Buff tailed bumblebees, Bombus terrestris, are one of the twenty species of bumblebee found in Ireland. They are very similar to white-tailed bumblebees, Bombus lucourum, in fact they are so similar that it is impossible to tell the workers apart. The Queens, who emerge in spring, are quite distinct though.
As the name suggests the buff tailed bumble has indeed a tail that is buff coloured (see photos above). While the white tailed bumbles (see photos below) have much whiter tails. On closer inspection, you may also notice the difference in the yellow banding. The yellow bands on the white tailed bee are more lemon yellow.
Inspired by today’s Daily Prompt: Buff